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printk_ratelimit for quota error messages
This patch changes quota_tree.c:write_blk() to detect error caused by partial
write to quota file and add a macro to limit control printed quota error
messages so we won't fill up dmesg with a corrupted quota file.
Signed-off-by: Jiaying Zhang <jiayingz@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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Quota stats is mostly writable data structure. Let's alloc percpu
bucket for each value.
NOTE: dqstats_read() function is racy against dqstats_{inc,dec}
and may return inconsistent value. But this is ok since absolute
accuracy is not required.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
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Wrap long lines, remove assignments from conditions, rewrite two
overcomplicated for loops.
Signed-off-by: Jan Kara <jack@suse.cz>
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Remove inlines of large functions to decrease code size (saved 1543
bytes).
Signed-off-by: Jan Kara <jack@suse.cz>
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Remove bogus typedef which is just a definition of char *.
Remove unnecessary type casts.
Substitute freedqbuf() with kfree.
Signed-off-by: Jan Kara <jack@suse.cz>
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Quota subsystem has more and more files. It's time to create a dir for it.
Signed-off-by: Jan Kara <jack@suse.cz>
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